Comparison+between+different+import+method+from+Revit+to+3DS+Max

=**__Summary of Comparison Between Different Import Method from Revit 2017 to 3DS Max 2017__**=


 * Note: Findings are based on:**
 * 1) ** Sample Revit Project **
 * 2) ** Rendering Mode: Edged Faces **

**__Statistics__**
objects are pretty smooth, though, not as smooth as FBX Files ||= Takeslonger time to import || objects are pretty smooth, though, not as smooth as FBX Files ||= Takes longer time to import || as Revit model ||= Camera offsets from Revit are not supported in 3DS Max || as Revit model ||= N/A || as Revit model ||= Takes longer time to import. Slightly higher polygon count than 1st and 2nd level Revit import || Though a lot of rough edges ||= N/A || (Revit) ||= 342,904 ||= 177,094 ||= N ||= Y ||= Smoothness is preserved. Same quality as FBX files ||= Takes longer time to import. Slightly higher polygon count than 1st and 2nd level Revit import || (FBX) ||= 431,970 ||= 258,247 ||= N ||= Y ||= Smoothness is preserved. Though a lot of rough edges ||= N/A ||
 * = **No** ||= **Import Method** ||= **Polygon Count** ||= **Vertex Count** ||= **Missing Object**
 * (Y/N)** ||= **Correct Scale**
 * (Y/N)** ||= **Object Smoothness** ||= **Remarks** ||
 * = **1** ||= 1st Level Import Revit ||= 239,985 ||= 126,525 ||= N ||= Y ||= At Level 8 Curved Object Details,
 * = **2** ||= 2nd Level Import Revit ||= 239,985 ||= 126,525 ||= N ||= Y ||= At Level 8 Curved Object Details,
 * = **3** ||= 1st Level Import FBX ||= 431,970 ||= 258,247 ||= N ||= Y ||= Preserved really well. Same quality
 * = **4** ||= 2nd Level Import FBX ||= 431,970 ||= 258,247 ||= N ||= Y ||= Preserved really well. Same quality
 * = **5** ||= Link Revit ||= 342,904 ||= 177,094 ||= N ||= Y ||= Smoothness is preserved. Same quality
 * = **6** ||= Link FBX ||= 431,970 ||= 258,247 ||= N ||= Y ||= Smoothness is preserved.
 * = **7** ||= Reference Manage Links
 * = **8** ||= Reference Manage Links

**__Figure 1: Graph of Comparison Between Different Import Methods and Their Effect Towards Polygon and Vertex Count__**
 * Note:** For __**1st Level Import Revit**__, we found that in Revit and 3DS Max 2016 Version, there is a possible glitch which causes objects to not be imported into 3DS Max. Even though this occasion is rare, if it happens, you can either re-import the model or just import the missing object. Please refer to Revit to Unity workflow document.

**__Conclusion__**
1. 1st or 2nd Level of Import does not affect the polygon or vertex count of the object. This applies for both FBX and Revit Files. 2. Importing objects through Link Revit results in a slightly higher polygon and vertex count compared to 1st and 2nd Level of Revit Import. 3. All objects are scaled correctly and there are no missing objects observed in any import method. 4. Objects imported by link result in better objects’ smoothness. 5. Objects imported by either 1st or 2nd Level Revit Import are not as smooth compared to objects imported by link and FBX. 6. Objects imported through their Revit file take longer to import compared to FBX files.

**__Recommendation__**
Even though objects imported through their FBX files result in better quality compared to Revit files, polygon and vertex count for FBX files are twice as large compared to Revit files. Thus, importing objects to 3DS Max through their Revit files will result in a more efficient polygon and efficient count.

**1.** **__1st Level Import Revit (Polygon Count: 239,985 ; Vertex Count: 126,525)__**




** 2. **** __2nd Level Import Revit (Polygon Count: 239,985 ; Vertex Count: 126,525)__ **




** 3. **** __1st Level Import FBX (Polygon Count: 431,970 ; Vertex Count: 258,247)__ **




** 4. **** __2nd Level Import FBX (Polygon Count: 431,970 ; Vertex Count: 258,247)__ **




** 5. **** __Link Revit (Polygon Count: 342,904 ; Vertex Count: 177,094)__ **




** 6. **** __Link FBX (Polygon Count: 431,970 ; Vertex Count: 258,247)__ **




** 7. **** __Reference Manage Links (Revit) (Polygon Count: 342,904 ; Vertex Count: 177,094)__ **




** 8. **** __Reference Manage Links (FBX) (Polygon Count: 431,970 ; Vertex Count: 258,247)__ **